The antonyms for the word "more euphoric" would be "less joyful," "dismal," "depressed," "miserable," and "gloomy." These words suggest a lack of happiness, joy, and contentment. They are often associated with negative emotions and feelings of sadness. When we are feeling these emotions, it can be difficult to find joy and happiness in the world around us. It is important to remember that everyone experiences these feelings from time to time, but it is essential to seek support and help when we are feeling down. By doing so, we can find ways to cultivate a more joyful and fulfilling life.